rare earth elements 稀土元素 ; 元素 ; 稀土族元素 ; 前言稀土元素
Light Rare Earth Elements 轻稀土元素
Rare Earth Elements profile 地球上的稀土元素
rare earth elements pattern [地质] 稀土配分模式
geochemistry of rare earth elements 稀土元素地球化学 ; 稀土元素地球化学研究
Especially Rare Earth Elements 特别稀土元素
rare earth elements dy 稀土元素dy
rare earth elements re 稀土元素re
rare earth elements gd 稀土元素gd
The comparison of the effect of four rare-earth elements on microstructure and properties of alloys showed that Dy was the most effective in alloy microstructure refinement and properties improvement, Gd, Nd and Y followed.
比较四种稀土元素对合金的组织与性能的影响规律,结果表明Dy的加入对合金组织细化和力学性能改善最为有效,其余依次是Gd、Nd和Y。
参考来源 - 稀土元素对ZnIt does not prove that the more higher concentration of luminescent center,the greater luminous intensity,also proves that the rare-earth elements with the nature of concentration quenching.
证明了并不是发光中心浓度越大样品发光强度越大,亦证明了稀土元素具有浓度猝灭的性质。
参考来源 - 稀土发光材料研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The nearside also has much more kreep-potassium, rare-earth elements, and phosphorus-according to scientists.
据科学家称，月球近地端含有更多的克里普矿物，稀有地球元素钾，还有磷。
Existing lasers use media ranging from crystals doped with rare-earth elements to specific mixtures of gas and even certain sorts of semiconductors.
现有的激光器使用的介质有，掺杂有稀土元素的晶体、特定比例的气体，甚至是某些特定半导体。
The discovery of lunar water has raised questions as to whether other resources such as helium 2 and rare Earth elements could be found on the moon as well.
月球水的发现带来了更多疑问，是否还有例如氦2和地球上的稀土元素的资源在月球上被找到。
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